When a pond's surface is calm, आप can see और clearly into its depths. As it turns out, the same is true for the sun.

Researchers are excited that the sun's surface is calmer now than it's been in almost a century. It's a rare opportunity — the first since the अंतरिक्ष Age began — to peer और clearly into the sun's mysterious interior.

To take advantage of the opportunity, NASA is about to launch the Solar Dynamics बेधशाला, वेधशाला (SDO). SDO is expected to launch this year, as early as November 2009.

Jupiter is the oldest and most massive world in the solar system. Learn about the planet's origin story, its Great Red Spot and oceanic moons, and how this ancient world influenced the formation of the solar system's other planets.

For the past 23 years Andrea Ghez, professor of physics and astronomy at UCLA, has been collecting data on stars that orbit black holes. She found that their motion provided an opportunity to test the fundamental laws of physics.